Presio Master FP and SeeMax Master AP push the boundaries of ophthalmic lens technology by using the third generation Aberration Filter Surface Technology™ (AFS Generation III). AFS Generation III relies on two optimization technologies, Deformation Tuning and Binocular Tuning, to virtually eliminate distortions on the peripheral portions of the lens, which generate the most visual discomfort. Your patients will benefit from a remarkably wider usable lens area and significantly sharper fields of vision.